Changeset b87f418 in mainline for generic/include/mm/frame.h

Timestamp:

2005-12-07T23:00:30Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

f62355a

Parents:

4acac843

Message:

Send in some improvements.

File:

• generic/include/mm/frame.h (modified) (1 diff)

generic/include/mm/frame.h

@@ -46 +46 @@
 #define FRAME_INDEX(zone, frame)                ((index_t)((frame) - (zone)->frames))
 #define FRAME_INDEX_VALID(zone, index)          (((index) >= 0) && ((index) < ((zone)->free_count + (zone)->busy_count)))
-#define IS_BUDDY_LEFT_BLOCK(zone, frame)        ((FRAME_INDEX((zone), (frame)) & ~(((__native) -1)<<((frame)->buddy_order + 1))) == 0)
+#define IS_BUDDY_ORDER_OK(index, order)         ((~(((__native) -1) << (order)) & (index)) == 0)
+#define IS_BUDDY_LEFT_BLOCK(zone, frame)        (((FRAME_INDEX((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
+#define IS_BUDDY_RIGHT_BLOCK(zone, frame)       (((FRAME_INDEX((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
 
 #define ZONE_BLACKLIST_SIZE     3